
Customizing IP Services
114065 Rev. A 3-19
Configuring ICMP Features on an Interface
IP routers and hosts exchange control messages defined by the Internet Control
Message Protocol (ICMP).
The following sections describe the ICMP messages that you can enable and
disable on an IP interface.
Enabling ICMP Address-Mask Replies on an Interface
You can configure IP to generate ICMP (Internet Control Message Protocol)
address-mask-reply messages on this interface in response to valid
address-mask-request messages. The interface generates ICMP
address-mask-reply messages in compliance with the relevant sections of RFCs
950 and 1009.
By default, IP does not generate address-mask-reply messages. You can use Site
Manager to enable the feature on the interface.
Enabling ICMP Redirect Messages
An ICMP redirect is a message sent by the router to alert a host that it should be
using a different path to route data.
By default, IP sends ICMP redirect messages. You can use Site Manager to
disable and re-enable this function.
In some cases, you do not want an interface to send out redirects. For example, in
a Frame Relay network, two stations on the same network may not be directly
connected if the network is not fully meshed. Thus, in this case, you would set
Redirects to Disable.
Site Manager: Addr Mask Reply parameter: page A-26
Site Manager: Redirects parameter: page A-30
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